Abstract
In North America, a different standard is used for transmitting digital TV signals over broadband cable which is ITU-T J83B. In principle, J83B is comparable to J83A, C (Europe, Japan) but there are great differences in detail, especially in the FEC. The channel bandwidth in J83B is 6 MHz as in J83C (Japan). The modulation methods used are only 64QAM and 256QAM with a roll-off factor of r = 0.18 (64QAM) and r = 0.12 (256QAM). The error protection (FEC) is much more elaborate than in J83A or C. This begins with the MPEG framing.
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TV Test Receiver EFA, Gerätehandbuch, Rohde&Schwarz, München, 2001
ITU-T J83: Transmission of Television, Sound Programme and other Multimedia Signals; Digital Transmission of Television Signals, April 1997
TV Test Transmitter SFQ, Gerätehandbuch, Rohde&Schwarz, München, 2001
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© 2008 Springer-Verlag Berlin Heidelberg
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(2008). Broadband Cable Transmission According to ITU-T J83B. In: Digital Video and Audio Broadcasting Technology. Signals and Communication Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-76358-1_17
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DOI: https://doi.org/10.1007/978-3-540-76358-1_17
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-76357-4
Online ISBN: 978-3-540-76358-1
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